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| author | Daniil Fukalov <daniil.fukalov@amd.com> | 2017-10-25 12:51:32 +0000 |
|---|---|---|
| committer | Daniil Fukalov <daniil.fukalov@amd.com> | 2017-10-25 12:51:32 +0000 |
| commit | 65f1735a62f6ae1654f90380e08b1f154c54f7ce (patch) | |
| tree | 33855fd7dc035c648e832536c0e0b376c5c4e0b4 /test | |
| parent | 14c20baca7c838683e1568cb693bcaf5041d571c (diff) | |
[inlineasm] Fix crash when number of matched input constraint operands overflows signed char
In a case when number of output constraint operands that has matched input operands
doesn't fit to signed char, TargetLowering::ParseConstraints() can try to access
ConstraintOperands (that is std::vector) with negative index.
Reviewers: rampitec, arsenm
Differential Review: https://reviews.llvm.org/D39125
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316574 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/AMDGPU/InlineAsmCrash.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/InlineAsmCrash.ll b/test/CodeGen/AMDGPU/InlineAsmCrash.ll new file mode 100644 index 00000000000..8ad1cbb9a32 --- /dev/null +++ b/test/CodeGen/AMDGPU/InlineAsmCrash.ll @@ -0,0 +1,12 @@ +; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck %s + +; CHECK: ;;#ASMSTART +; CHECK-NEXT: s_nop 0 +; CHECK-NEXT: ;;#ASMEND + +define void @foo(i32* %ptr) { + %tmp = tail call { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 } asm "s_nop 0", "=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,=v,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65"(i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2, i32 2) + %tmp2 = extractvalue { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 } %tmp, 0 + store i32 %tmp2, i32* %ptr, align 4 + ret void +} |